The Andromeda galaxy is the closest neighbour to our own Milky Way, and the study by an Australian-led international research team has found it is not the friendliest neighbour. "We know that big galaxies grow by 'eating' smaller galaxies, and what we've been able to pin down in this research is that it wasn't a constant snacking. SEBASTIAN ZENTIMOLO An artist's impression of the Andromeda galaxy - interstellar space cannibal. ALEC MESSENGER/SUPPLIED The Andromeda galaxy is the closest neighbour to our own Milky Way. Astronomers can study Andromeda because it is far enough away from us they can see all of it, while it is much harder for them to study the Milky Way, because we are inside it.

Source: Stuff October 02, 2019 21:22 UTC